"""
Copyright (c) 2022 Huawei Technologies Co.,Ltd.

openGauss is licensed under Mulan PSL v2.
You can use this software according to the terms and conditions of the Mulan PSL v2.
You may obtain a copy of Mulan PSL v2 at:

          http://license.coscl.org.cn/MulanPSL2

THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
See the Mulan PSL v2 for more details.
"""
"""
Case Type   : MOT
Case Name   : 结合MOT表，结合系统表或系统视图查询内存表信息
Create At   : 2021/1/6
Owner       : opentestcase001
Description :
    1、检查参数，修改配置，并重启数据库
       gs_guc set -D cluster/dn1 -c "enable_incremental_checkpoint=off"
    2、创建MOT内存表，与系统表pg_class结合测试
    3、创建和内存表关联视图，与系统表pg_class结合测试
    4、清理环境
Expect      :
    1、修改成功，重启数据库成功；
    2、创建内存表成功，系统表中可以查到相关信息；
    3、创建关联视图成功；
    4、清理环境成功；
History     :
   modified by opentestcase010 at 2023/2/6，优化MOT用例
"""

import os
import unittest
from testcase.utils.Logger import Logger
from testcase.utils.Common import Common
from testcase.utils.CommonSH import CommonSH
from testcase.utils.Constant import Constant


class MotDdlTest(unittest.TestCase):

    def setUp(self):
        self.logger = Logger()
        self.primary_sh = CommonSH('PrimaryDbUser')
        self.constant = Constant()
        self.commonsh = CommonSH
        self.common = Common()
        self.config = 'enable_incremental_checkpoint'
        self.t_name = 't_mot_0102'
        self.v_name = 'v_mot_0102'
        self.logger.info(f'-----{os.path.basename(__file__)} start-----')
        self.logger.info('-----step1:修改配置，并重启数据库-----')
        show_msg = self.common.show_param(self.config)
        if 'off' not in show_msg:
            msg1 = self.primary_sh.execute_gsguc('set',
                                             self.constant.GSGUC_SUCCESS_MSG,
                                             f'{self.config}=off')
            self.logger.info(msg1)
            msg2 = self.primary_sh.restart_db_cluster()
            self.logger.info(msg2)
            msg3 = self.primary_sh.get_db_cluster_status()
            self.assertTrue("Normal" or "Degrade" in msg3)
            show_msg = self.common.show_param(self.config)
            self.assertTrue('off' in show_msg)

    def test_mot_ddl(self):
        text = '-----step2:创建MOT内存表，与系统表pg_class结合测试;' \
               'expect:成功-----'
        self.logger.info(text)
        sql_cmd1 = f'''
            drop foreign table if exists {self.t_name};
            create foreign table {self.t_name}(id int,name varchar(10));
            insert into {self.t_name} values(generate_series(1,200),'a');
            select relnatts from pg_class where relname='{self.t_name}';
            select relkind from pg_class where relname='{self.t_name}';
            '''
        msg4 = self.primary_sh.execut_db_sql(sql_cmd1)
        self.logger.info(msg4)
        self.assertIn(self.constant.CREATE_FOREIGN_SUCCESS_MSG, msg4)
        self.assertIn(self.constant.INSERT_SUCCESS_MSG, msg4)
        self.assertEqual('2', msg4.splitlines()[-7].strip())
        self.assertEqual('f', msg4.splitlines()[-2].strip())

        text = '-----step3:创建和内存表关联视图，与系统表pg_class结合测试;' \
               'expect:成功-----'
        self.logger.info(text)
        sql_cmd2 = f'''
            create view {self.v_name} as 
            select * from {self.t_name} where id < 100;
            select relnatts from pg_class where relname='{self.v_name}';
            select relkind from pg_class where relname='{self.v_name}';
            '''
        msg5 = self.primary_sh.execut_db_sql(sql_cmd2)
        self.logger.info(msg5)
        self.assertIn(self.constant.CREATE_VIEW_SUCCESS_MSG, msg5)
        self.assertEqual('2', msg5.splitlines()[-7].strip())
        self.assertEqual('v', msg5.splitlines()[-2].strip())

        text = '-----step4:清理环境;expect:成功-----'
        self.logger.info(text)
        sql_cmd3 = f'''
                    drop foreign table {self.t_name} cascade;
                    '''
        msg6 = self.primary_sh.execut_db_sql(sql_cmd3)
        self.logger.info(msg6)
        self.assertIn(self.constant.DROP_FOREIGN_SUCCESS_MSG, msg6)

    def tearDown(self):
        self.logger.info('-----this is tearDown-----')
        self.logger.info('-----恢复配置，enable_incremental_checkpoint=on-----')
        show_msg = self.common.show_param(self.config)
        if 'on' not in show_msg:
            msg7 = self.primary_sh.execute_gsguc('set',
                                             self.constant.GSGUC_SUCCESS_MSG,
                                             f'{self.config}=on')
            self.logger.info(msg7)
            msg8 = self.primary_sh.restart_db_cluster()
            self.logger.info(msg8)
            msg9 = self.primary_sh.get_db_cluster_status()
            self.assertTrue("Normal" or "Degrade" in msg9)
        show_msg = self.common.show_param(self.config)
        self.assertTrue('on' in show_msg)
        self.logger.info(f'-----{os.path.basename(__file__)} end-----')
